Adding the year slicer:
At the visualization pane, click on the slicer, Select the Date table, and the year from the field pane.
Click on the drop-down on the slider and select between:
Formatting the year slicer:
Font Color = Custom color #25476e
Border Color = Custom color #808080
Background Color = Custom color #FFF
Adding the Demographic_Question and Demographic_Response Slicers:
At the visualization pane, click on the slicer, Select the Violence_Survey table, Demographic_Response, and Demographic_Question from the field pane.
On the slicer, from the drop-down arrow, click on dropdown.
Formatting the Demographic-Response slicer:
Font Color = Custom color #25476e
Border Color = Custom color #808080
Background Color = Custom color #FFF
Formatting the Demographic_Question Slicer:
Font Color = Custom color #25476e
Border Color = Custom color #808080
Background Color = Custom color #FFF
Follow the GIFs:
Click on the link below to better understand power-bi-visualization-slicers.
https://docs.microsoft.com/en-us/power-bi/visuals/power-bi-visualization-slicers